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Standards GB - Chinese national standards - Page 4678

Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level. Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document

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GB/T 47390-2026

Technical code of practice for identification and evaluation of eggplant resistance to verticillium wilt
Execute Date: november 2026

Standard published on 30.4.2026

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GB/T 47391.1-2026

Plastics—Unsaturated-polyester powder moulding compounds (UP-PMCs)—Part 1: Designation system and basis for specifications
Execute Date: october 2026

Standard published on 31.3.2026

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GB/T 47391.2-2026

Plastics—Unsaturated-polyester powder moulding compounds (UP-PMCs)—Part 2: Preparation of test specimens and determination of properties
Execute Date: october 2026

Standard published on 31.3.2026

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GB/T 47391.3-2026

Plastics—Unsaturated-polyester powder moulding compounds (UP-PMCs)—Part 3:Requirements for selected moulding compounds
Execute Date: october 2026

Standard published on 31.3.2026

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GB/T 47392-2026

Plastics—Epoxy resins—Determination of degree of crosslinking of crosslinked epoxy resins by Fourier Transform Infrared (FTIR) Spectroscopy
Execute Date: october 2026

Standard published on 31.3.2026

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GB/T 47393-2026

Technical guidelines for directional recycling of waste lithium battery chemicals
Execute Date: october 2026

Standard published on 31.3.2026

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